Roof of a work vehicle



FIG. 1 is a front perspective view of a roof of a work vehicle showingour new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a back perspective view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a back view thereof;

FIG. 8 is a left side view thereof; and,

FIG. 9 is a right side view thereof.

Phantom lines, where utilized, are for illustrative purposes only andform no part of the claimed design.

CLAIM The ornamental design for a roof of a work vehicle, substantiallyas shown and described.